FERN CROSSING AND HYBRIDISING. 295 
Then there are our Osmunda regalis and Osmunda japonica cristata to 
act as suitors to O. cinnamonea, O. interrupta, and O. gracilis, and finally 
there are our lovely forms of Polypodiwm vulgare, P. v. cristatum, grandi- 
ceps, Fox, Forster, and Parker, bifido-cristatum, and pulcherrimum, to 
o 
oh 
WETS AN 
an 
A A+B B 
fie. 110.—PorysticHUM ANGULARE ROTUNDATUM (A) x P. a. cructatum (B). 
Resutt or THE Cross (A +B). 
Note that only the upper half of B is cruciate, and so with A+B. 
say nothing of P. v. elegantissimum, the British-born parent of P. 
Schneiderit, all waiting for chances of the introduction which they 
certainly merit to the aristocratic Fern circles of their more stately 
foreign relatives. The field indeed is all but virgin, and I am confident 
